نتایج جستجو برای: traffic behavior
تعداد نتایج: 709868 فیلتر نتایج به سال:
The wrong behaviour of road traffic participants is a permanently discussed issue in many countries with advanced road transport. Such behaviour does not always result in traffic accident, but only in restriction or danger to the culprit or other participants. For monitoring the behavioural problems it is possible to apply the video-analysis of the conflict situations. The methodology of the co...
The LAMIH particularly the research group Human-Machine Systems, has studied humanmachine cooperation for many years, in a variety of contexts where safety is essential. Our approach is multi-disciplinary and uses different models and methods to elaborate symbolic and formal representations of human-machine cooperation. Our principal objective is to propose and evaluate a semi-formal framework ...
Measurements of communication traffic from a wide variety of sources have suggested that correlations persist in such sources over fairly long time scales. This has called into question the use of traditional traffic models for the performance analysis of such networks, and has sparked an interest in studying novel kinds of traffic models. In particular, a suggestion has been made to build mode...
The traffic engineering of IP networks requires accurate characterization and modeling of network traffic, due to the growing diversity of multimedia applications and the need to efficiently support QoS differentiation in the network. In recent years several types of traffic behavior, that can have significant impact on network performance, were discovered: longrange dependence, self-similarity...
Various researches used cellular models in which we can observe emerging behaviors that have not been programmed explicitly. The Cell-DEVS methodology is formal modeling technique that permits defining each cell in a cell space as individual independent entity. We used Cell-DEVS to build different models of traffic. We show how to model cell spaces with emerging behavior using this methodology....
During recent decades, traffic demand has overtaken the overall capacity of existing highway and freeway networks, causing traffic delays and negative environmental impacts. Consequently, innovative traffic control strategies have been developed to improve network performance and they have proved to be effective in delaying or preventing congestion. Dynamic microsimulation models are natural co...
Modern mobile communication networks provide a variety of voice and data services. The latest set of mobile technology specifications by the 3rd Generation Partnership Project (3GPP) is referred to as Long Term Evolution (LTE). In this paper, the performance of a wireless network where LTE is used at the Medium Access Control (MAC) layer is evaluated. User Datagram Protocol (UDP) traffic is con...
A fractal is a function or a process in which an identical motif repeats itself on an ever diminishing scale. The motif of a fractal can be a feature influenced by chance. Fractals can be found in nature everywhere, for instance the surface of the moon is a fractal, where the motif of craters is repeated in a scale from inches to miles. It is created by random collisions with space objects. Fra...
We perform a simplified Ethernet traffic simulation in order to clarify the physical mechanism of the phase transition behavior which has been experimentally observed in the flow density fluctuation of Internet traffic. In one phase traffics from nodes connected with an Ethernet cable are mixed, and in the other phase, the nodes alternately send bursts of packets. The competition of sending pac...
Traffic generation in mobile networks is heavily dependent on user behavior because the users move around with their terminals. For example, at a special event such as a fireworks display or football game, the people will congregate in a specific place and may try to make calls, generating unpredictable excessive traffic, leading to network congestion. When the users cannot get through due to c...
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